Petrobras has discovered "good quality oil" in a new well in the giant Libra field, in the pre-salt Santos basin, offshore Brazil.
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Map of the Libra field, from Petrobras. |
Well 3-BRSA-1305A-RJS, in the northwest area of Libra, encountered a 270m oil column, and high-quality reservoirs in communication with previous wells in the area, the Brazilian national company said.
The Libra consortium performed two drill stem tests on two different intervals that confirmed excellent productivity of the reservoirs and good oil quality of 28º API, similar to wells 2-ANP-2A-RJS and 3-RJS-731.
Two additional wells, 3-BRSA-1322-RJS (3-RJS-741) and 3-BRSA-1339-RJS (3-RJS-742), are currently being drilled in the same area of the Libra block.
Petrobras confirmed that wireline testing at the 3-BRSA-1322-RJS well identified the oil-bearing zone, and fluid samples that will be characterized by laboratory analysis. This well will be drilled to 5527m.
Drilling at well 3-BRSA-1339-RJS began earlier this month.
Brazil’s national petroleum agency, ANP, estimates that the Libra field, which covers some 1500sq km, contains 8-12 billion boe.
The Libra consortium is composed of operator Petrobras with 40% stake. Partners are Shell (20%), Total (20%), CNPC (10%) and CNOOC (10%). The contract manager is Pré-Sal Petróleo S.A. (PPSA).
Read more:
Petrobras hits further Libra pay
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